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|
Attributes | |
ACN | 1435217 |
Time | |
Date | 201703 |
Local Time Of Day | 1201-1800 |
Place | |
Locale Reference | N90.TRACON |
State Reference | NY |
Environment | |
Light | Daylight |
Aircraft 1 | |
Make Model Name | B737-700 |
Operating Under FAR Part | Part 121 |
Flight Phase | Climb |
Flight Plan | IFR |
Component | |
Aircraft Component | Trailing Edge Flap |
Person 1 | |
Function | Pilot Flying Captain |
Qualification | Flight Crew Air Transport Pilot (ATP) |
Experience | Flight Crew Last 90 Days 177 Flight Crew Type 1205 |
Events | |
Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
During climbout; we noticed the flap indicator showed the left te flap at 1 degree with the right flap at zero (the selected position). Previously we had hand-flown the aircraft through cleanup and had noticed no asymmetry. The flaps had indicated full up and VNAV had engaged with no speed restriction. We found that the left te (trailing edge) position sensor circuit breaker was popped; and concluded that we had no asymmetry; just a failed indicator. We elected to continue to [our destination] without changing anything. Upon descent; the flaps did not respond to handle movement. I elected to reset the popped circuit breaker; which restored flap indicator operation (both flaps indicating zero).unfortunately; the flaps still did not respond to handle movement. We requested a delaying vector and performed the QRH procedures for trailing edge flap disagree and alternate flap extension. We recalculated landing data for the flaps 15 landing; completed all checklists using the QRH and landed uneventfully. At the gate we wrote-up the popped/reset circuit breaker (which remained in) and the alternate flap extension in the logbook; and gave the aircraft to maintenance. In total; landing was delayed by about 5 minutes.
Original NASA ASRS Text
Title: B737-700 Captain reported flaps did not respond to handle movement; QRH procedures were followed for alternate flap extension to uneventful landing.
Narrative: During climbout; we noticed the flap indicator showed the left TE Flap at 1 degree with the right flap at zero (the selected position). Previously we had hand-flown the aircraft through cleanup and had noticed no asymmetry. The flaps had indicated full up and VNAV had engaged with no speed restriction. We found that the left TE (Trailing Edge) Position Sensor circuit breaker was popped; and concluded that we had no asymmetry; just a failed indicator. We elected to continue to [our destination] without changing anything. Upon descent; the flaps did not respond to handle movement. I elected to reset the popped circuit breaker; which restored flap indicator operation (both flaps indicating zero).Unfortunately; the flaps still did not respond to handle movement. We requested a delaying vector and performed the QRH procedures for Trailing Edge Flap Disagree and Alternate Flap Extension. We recalculated landing data for the Flaps 15 landing; completed all checklists using the QRH and landed uneventfully. At the gate we wrote-up the popped/reset circuit breaker (which remained in) and the alternate flap extension in the logbook; and gave the aircraft to Maintenance. In total; landing was delayed by about 5 minutes.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.